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Conjunction of the Moon and Saturn

Dominic Ford, Editor
From the Conjunctions feed

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The sky at

The Moon and Saturn will share the same right ascension, with the Moon passing 1°58' to the north of Saturn. The Moon will be 13 days old.

At around the same time, the two objects will also make a close approach, technically called an appulse.

From Fairfield, the pair will be visible in the evening sky, becoming accessible around 20:51 (EDT) as the dusk sky fades, 27° above your south-eastern horizon. They will then reach its highest point in the sky at 22:15, 30° above your southern horizon. They will continue to be observable until around 02:25, when they sink below 8° above your south-western horizon.

Begin typing the name of a town near to you, and then select the town from the list of options which appear below.

The Moon will be at mag -12.5, and Saturn at mag 0.1, both in the constellation Libra.

The pair will be too widely separated to fit within the field of view of a telescope, but will be visible to the naked eye or through a pair of binoculars.

A graph of the angular separation between the Moon and Saturn around the time of closest approach is available here.

The positions of the two objects at the moment of conjunction will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
The Moon 15h48m50s -15°54' Libra -12.5 30'45"4
Saturn 15h48m50s -17°52' Libra 0.1 18"1

The coordinates above are given in J2000.0. The pair will be at an angular separation of 141° from the Sun, which is in Gemini at this time of year.

The sky on 28 June 2015
Twilight ends
Twilight begins

12-day old moon
Waxing Gibbous


12 days old

Rise Culm. Set
Mercury 04:06 11:23 18:39
Venus 08:57 15:57 22:57
Moon 17:12 22:18 02:44
Mars 05:03 12:39 20:15
Jupiter 09:03 16:02 23:01
Saturn 17:17 22:15 03:17
All times shown in EDT.


The circumstances of this event were computed using the DE405 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).

This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.

Related news

22 May 2015  –  Saturn at opposition
29 Nov 2015  –  Saturn at solar conjunction
03 Jun 2016  –  Saturn at opposition
10 Dec 2016  –  Saturn at solar conjunction

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